'Shackles' in the Bible

And [the] Philistines seized him, gouged his eyes, and brought him to Gaza. They tied him up with bronze shackles, and he became a grinder {in the prison}.

because he had often been bound with shackles and chains, and the chains had been torn apart by him, and the shackles had been shattered. And no one was strong [enough] to subdue him.

For he had commanded the unclean spirit to come out of the man. (For it had seized him many times, and he was bound with chains and shackles [and] was guarded, and breaking the bonds he would be driven by the demon into the deserted places.)